下述哪项是正式临产的主要表现( )。
A．见红B．有规律的子宫收缩C．宫颈变软D．先露固定E．下腹隐痛
参考答案：B
解析：[知识点] 临产先兆诊断
机动车行驶时，乘坐人员可不使用安全带。
Alice kept quiet about the incident _______lose her job. ( )
A．so not as to
B．so as not to
C．so as to not
D．not so as to
